CN219203301U

CN219203301U - Air supply duct, air-cooled energy storage container and energy storage system

Info

Publication number: CN219203301U
Application number: CN202320042647.5U
Authority: CN
Inventors: 喻文广; 周金亮; 罗剑威; 施华军; 林玉春
Original assignee: Zhonghongke Innovation Energy Technology Zhejiang Co ltd
Current assignee: Zhonghongke Innovation Energy Technology Zhejiang Co ltd
Priority date: 2023-01-03
Filing date: 2023-01-03
Publication date: 2023-06-16
Anticipated expiration: 2033-01-03

Abstract

The utility model provides an air supply duct, an air-cooled energy storage container and an energy storage system, which belong to the field of energy storage systems, wherein the air supply duct comprises: the main body air duct is a flat gradually-expanding pipeline, and a large end face port of the gradually-expanding pipeline is used as an inlet and is communicated with an air outlet of the cooling device; the air outlet hoods are arranged on one side wall of the main air duct and are used for guiding the flow direction of cooling air from horizontal flow direction to downward flow direction, wherein a side plate opposite to the side wall of the main air duct is provided with a preset inclination and is used for adjusting static pressure in the main air duct, and an included angle between the side plate and an inlet surface of the main air duct is an acute angle; the air outlet area of the air outlet hood gradually decreases along with the increase of the distance between the air outlet hood and the inlet. Through the processing scheme of this application, in narrow and small space, can evenly carry cooling air to power equipment.

Description

Air supply duct, air-cooled energy storage container and energy storage system

Technical Field

The utility model relates to the field of energy storage systems, in particular to an air supply duct, an air-cooled energy storage container and an energy storage system.

Background

The main factors influencing the performance and service life of the battery system of the lithium battery energy storage system at present are temperature control in the battery operation process: the overheat of the operating temperature may lead to thermal runaway of the battery, the low environment leads to reduced discharge efficiency, and the capacity of the battery cells is attenuated due to uneven temperature between the batteries. Therefore, how to control the battery operating temperature and the consistency of the distribution thereof during the operation of the system is an important point in the research and development of the heat management work of the energy storage system.

For an air-cooled container energy storage system, the control of the running temperature of a battery in a container is mainly realized through an air conditioner and a cooling air duct. Cold air blown out by the air conditioner is sent into an air channel formed by the structure of the battery cabinet through the container air channel, then passes through the air channel in the battery box, and is pumped out by a fan on the battery box. The air duct design firstly ensures that the cooling air flow of each air outlet is uniform, thereby ensuring the consistency of the running temperature of each battery plug box, and secondly, the flow channel design meets the requirements of small flow resistance and reduced pressure of the system, and reduces the additional energy consumption of the whole cooling system. Therefore, the core of the heat management research and development work for the air quantity energy storage system is the design research and development of the cooling air duct.

At present, a plurality of cooling air channels of an air cooling container system are arranged at the top of a container, static pressure in the air channel is regulated by regulating the inclination of an upper cover plate of the air channel, and the uniformity of flow of each air outlet is controlled by combining the regulation of the area of the air outlet. The air duct structure has larger air duct height and has certain requirement on the installation space of the container. But with the current development trend of large energy storage capacity, the number of batteries in the container is increasing. Typically, to accommodate more batteries, the battery rack height will be higher, resulting in a top of the battery rack to the container

The top distance is becoming narrower and narrower, resulting in the installation space of wind channel too flat, has 5 great challenges to current wind channel structure. The thickness of the air duct is larger by adjusting the inclination of the top of the air duct to adjust the uniformity of the air quantity,

it has been difficult to apply to such narrow, flat spaces.

Disclosure of Invention

In order to overcome the above-mentioned drawbacks of the prior art, therefore, the present utility model provides a method for manufacturing a semiconductor device in a narrow space,

an air supply duct for uniformly conveying cooling air to the power equipment, an air-cooled energy storage container and an energy storage system. 0 in order to achieve the above object, the present utility model provides an air supply duct, which is disposed in an air-cooled energy storage container, comprising: the main body air duct is a flat gradually-expanding pipeline, and a large end face port of the gradually-expanding pipeline is used as an inlet and is communicated with an air outlet of the cooling device; a plurality of air outlet hoods arranged on one side wall of the main body air duct and used for guiding the flow direction of the cooling air from horizontal flow direction to downward flow direction, wherein,

the side plates of the main body air channel, which are opposite to the side walls, are provided with preset inclination and are used for adjusting the static pressure in the main body air channel 5, and an included angle between each side plate and the inlet surface of the main body air channel is an acute angle; the air outlet area of the air outlet hood gradually decreases along with the increase of the distance between the air outlet hood and the inlet.

In one embodiment, the sidewall is perpendicular to the inlet face.

In one embodiment, the outlet hood comprises a horizontal plane vent hole arranged on the side wall, a vertical deflector for guiding the airflow to flow and a vertical plane vent hole for guiding the airflow.

In one embodiment, the acute angle is 75 to 90 °.

In one embodiment, the number of the air outlet hoods is 10-21.

An air cooled energy storage container comprising: a container body; an energy storage battery pack; an electrical device disposed within the container body; a cooling device for producing cold air; and the air supply air duct is arranged at the top of the container body and is used for conveying the cold air into the electric equipment, wherein the air supply air duct is the air supply air duct.

An energy storage system comprises an air-cooled energy storage container, wherein the air-cooled energy storage container is the air-cooled energy storage container.

Compared with the prior art, the utility model has the advantages that: the main body air duct is in a flat shape, one side plate has a certain inclination, static pressure at different positions in the air duct is regulated by changing the inclination of the air duct side plate, and the cooling air is uniformly conveyed to the power equipment in a narrow space by combining with the regulation of the air outlet area of the air outlet hood, so that the power equipment is effectively cooled and radiated; the air outlet hood can effectively control the flow direction, and can accurately supply air and dissipate heat; and the requirements of air flow uniformity of each air outlet can be met by controlling the angle of the inclined plate and adjusting the size of the air outlet, so that the temperature uniformity of each battery cluster is controlled.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a blower duct according to an embodiment of the present utility model;

FIG. 2 is a schematic structural view of a main body duct according to an embodiment of the present utility model;

FIG. 3 is a side view of a body duct in an embodiment of the utility model;

FIG. 4 is a schematic view of a hood of an air outlet according to an embodiment of the present utility model;

fig. 5 is a side view of an air outlet cowl according to an embodiment of the present utility model.

Detailed Description

Embodiments of the present application are described in detail below with reference to the accompanying drawings.

Other advantages and effects of the present application will become apparent to those skilled in the art from the present disclosure, when the following description of the embodiments is taken in conjunction with the accompanying drawings. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. The present application may be embodied or carried out in other specific embodiments, and the details of the present application may be modified or changed from various points of view and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

It is noted that various aspects of the embodiments are described below within the scope of the following claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is merely illustrative. Based on the present application, one skilled in the art will appreciate that one aspect described herein may be implemented independently of any other aspect, and that two or more of these aspects may be combined in various ways. For example, apparatus may be implemented and/or methods practiced using any number and aspects set forth herein. In addition, such apparatus may be implemented and/or such methods practiced using other structure and/or functionality in addition to one or more of the aspects set forth herein.

It should also be noted that the illustrations provided in the following embodiments merely illustrate the basic concepts of the application by way of illustration, and only the components related to the application are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated.

In addition, in the following description, specific details are provided in order to provide a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects may be practiced without these specific details.

The embodiment of the application provides an air-cooled energy storage container, which comprises a container body, an energy storage battery pack, power equipment, a cooling device and an air supply duct.

The container body is provided with a ventilation inlet and a ventilation outlet. The ventilation inlet and the ventilation outlet can be respectively arranged at two opposite sides in the container body, so that a linear-like airflow track is formed in the container body, the gas flow resistance in the container body is reduced, the gas circulation flow efficiency is improved, and the heat dissipation effect is enhanced. The ventilation inlet and the ventilation outlet may also be arranged on the same side or on adjacent sides.

The energy storage battery pack is arranged in the container body. The energy storage battery may be a battery rack in which the battery cells are arranged. The lower part of the container body can be provided with a plurality of battery racks. The energy storage battery pack is provided with a cooling ventilating duct, so that air flows can enter the cooling ventilating duct conveniently, the container body can be provided with an air cooling pipeline, and the air cooling pipeline can be communicated with the cooling ventilating duct and an air outlet of the air supply duct. The air cooling pipeline can be communicated with an air outlet of an air outlet hood of the air supply channel, and can be used for directly conveying cold air to equipment with high heating power such as a battery rack and the like, so that the cooling efficiency is improved.

And the power equipment is arranged in the container body. The power device may include at least one of a battery distribution device, a power conversion device, and an energy storage converter device. The battery distribution device, the power conversion device and the energy storage converter device are used for performing control conversion on the energy storage battery pack. The power conversion device may be a DC-DC (direct current to direct current) conversion device.

And the cooling device is used for producing cold air. The cooling device may be a refrigerating air conditioner.

The air supply duct is arranged in the air-cooled energy storage container and arranged at the top of the container body and used for conveying cold air into the electric equipment.

As shown in fig. 1, the air supply duct includes a main body duct 14 and a plurality of air outlet caps 2 to 13.

The main body air duct 14 is a flat divergent pipeline, and a large end face port of the divergent pipeline is used as an inlet and is communicated with an air outlet of the cooling device. The main body air duct 14 is connected with an air outlet of the cooling device through the air guide pipe 1. The large end face port of the gradually-expanding pipeline is used as an inlet and is communicated with an air outlet of the cooling device through the air guide pipe 1.

As shown in fig. 2, the main body air duct 14 has a flat elongated shape, and the main body air duct 14 includes inclined side plates T1, a top plate T2, a bottom plate T3, and an open side wall T4. The side wall T4 of the opening is provided with a plurality of ventilation holes. The side plate T1, the top plate T2 and the bottom plate T3 are not provided with ventilation holes. In one embodiment, sidewall T4 is perpendicular to the inlet face. The height between the top plate T2 and the bottom plate T3 is 1% -5% of the length of the entire main body air duct 14, for example, the height between the top plate T2 and the bottom plate T3 is 181mm, and the length of the entire main body air duct 14 is 6509mm. The maximum width between the inclined side plate T1 and the side wall T4 of the opening is 10% -15% of the length of the whole main body air duct 14, the minimum width between the inclined side plate T1 and the side wall T4 of the opening is 3% -6% of the length of the whole main body air duct 14, for example, the maximum width between the inclined side plate T1 and the side wall T4 of the opening is 700mm, the minimum width between the inclined side plate T1 and the side wall T4 of the opening is 320mm, and the length of the whole main body air duct 14 is 6509mm.

As shown in fig. 3, a side plate T1 of the main body duct 14 opposite to the side wall T4 has a predetermined slope for adjusting the static pressure in the main body duct. The inclined side plate T1 is not in perpendicular relation to the inlet face of the main body tunnel 14 and includes an acute angle α, which in one embodiment is slightly less than 90 °. In another embodiment, the side walls of the openings may be non-perpendicular to the inlet face of the main body tunnel 14 and may also be at an acute angle. The cooling air is regulated by the side plates with a certain inclination, and the static pressure of flowing air in the main air duct 14 is gradually changed, so that the uniform air quantity regulation of each air outlet is realized.

The plurality of air outlet hoods 2 to 13 are provided on one side wall of the main body duct for guiding the flow direction of the cooling air from the horizontal flow direction to the downward flow direction. The structures of the air outlet hoods 2-13 are consistent, and the air outlet areas of the air outlets of different air outlet hoods are gradually reduced along with the increase of the distance between the air outlet hoods and the inlet. The shape of the outlet hood may not be limited as long as the flow direction of the air can be guided from the horizontal flow direction to the vertical flow direction.

The air conditioner cooling air enters the main air duct 14 through the air guide duct 1 and flows along the area formed by wrapping the wall plates of the main air duct; under the action of the side plate T1, the static pressure of cooling air changes; under the action of static pressure, cooling air flows out horizontally through each air outlet T4; after flowing out, the air flows into the wind scoopers 2-13, and then flows out from the outlets of the wind scoopers to the electric equipment below the air duct, such as a battery.

The air supply duct and the air-cooled energy storage container are of a flat shape, one side plate of the main body duct has a certain inclination, static pressures at different positions in the air duct are regulated by changing the inclination of the side plate of the air duct, and the cooling air is uniformly conveyed to the power equipment in a narrow space by combining the regulation of the air outlet area of the air outlet hood, so that the power equipment is cooled and radiated effectively; the air outlet hood can effectively control the flow direction, and can accurately supply air and dissipate heat; and the requirements of air flow uniformity of each air outlet can be met by controlling the angle of the inclined plate and adjusting the size of the air outlet, so that the temperature uniformity of each battery cluster is controlled.

In one embodiment, as shown in fig. 4 and 5, the outlet hood includes a horizontal surface vent hole S2 provided on the side wall, a vertical deflector S1 for guiding the flow direction of the air flow, and a vertical surface vent hole S3 for guiding the flow. The cooling air enters the air outlet hood from the horizontal plane vent hole S2, is guided to vertically downwards by the air guide hood wall plate S1, flows out from the vertical plane vent hole S3 and flows to the battery below the air duct.

In one embodiment, the angle of α is 75-90 °. As shown in fig. 3, the angle α is 86 °.

In one embodiment, the number of outlet caps is between 10 and 21.

In one embodiment, the angle α between the inclined plate T1 of the duct body and the inlet face of the body duct 14 may be calculated based on the duct length. Under the effect of swash plate T1, can realize to the adjustment of sub-air outlet flow, show the problem that exists under the improvement no inclination wallboard: for example, the air quantity of the air outlet far away from the inlet of the air channel is far greater than that of the air outlet close to the inlet.

In one embodiment, the areas of the air outlets are different according to the distance from the inlet, the air outlet areas of the 2-13 air outlets are gradually reduced along with the increase of the distance from the inlet, and the specific sizes of the air outlet areas of the 2-13 air outlets can be determined to be the final sizes according to simulation calculation; thus, the air duct can realize the high uniformity of the flow of each air outlet and promote the consistency of the temperature of the subsequent battery. The final dimensions are calculated based on CFD simulation and obtained in combination with parameter optimization. The area of each air outlet is in the interval of (13114 mm 2-19754 mm) ² ) The air outlet area presents: the farther from the air inlet, the smaller the area.

The embodiment of the utility model also provides an energy storage system which comprises an air-cooled energy storage container, wherein the air-cooled energy storage container is provided by the embodiment.

The energy storage system provided by the embodiment is applied to the air-cooled energy storage container provided by the implementation, and the safety is good. Of course, the energy storage system also has other effects related to the air-cooled energy storage container provided by the above embodiments, which are not described herein.

The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions easily conceivable by those skilled in the art within the technical scope of the present application should be covered in the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. An air supply duct, set up in air-cooled energy storage container, its characterized in that includes:

the main body air duct is a flat gradually-expanding pipeline, and a large end face port of the gradually-expanding pipeline is used as an inlet and is communicated with an air outlet of the cooling device;

a plurality of air outlet hoods arranged on one side wall of the main body air duct and used for guiding the flow direction of the cooling air from horizontal flow direction to downward flow direction,

the side plates opposite to the side walls of the main body air channel are provided with preset inclination angles and are used for adjusting static pressure in the main body air channel, and an included angle between each side plate and the inlet surface of the main body air channel is an acute angle;

the air outlet area of the air outlet hood gradually decreases along with the increase of the distance between the air outlet hood and the inlet.

2. The supply air duct of claim 1, wherein the side wall is perpendicular to the inlet face.

3. The supply air duct according to claim 1, wherein the outlet hood includes a horizontal surface vent provided on the side wall, a vertical deflector for guiding the flow direction of the air flow, and a vertical surface vent for guiding the flow.

4. The supply air duct according to claim 1, wherein the acute angle is 75 to 90 °.

5. The air supply duct according to claim 1, wherein the number of the air outlet caps is 10 to 21.

6. An air cooled energy storage container comprising:

a container body;

an energy storage battery pack;

an electrical device disposed within the container body;

a cooling device for producing cold air;

an air supply duct arranged at the top of the container body and used for sending the cold air into the electric power equipment,

wherein the air supply duct is the air supply duct according to any one of claims 1 to 5.

7. An energy storage system comprises an air-cooled energy storage container, and is characterized in that,

the air-cooled energy storage container is the air-cooled energy storage container of claim 6.